Observation of vortex phase singularities in Bose-Einstein condensates

Preprint

24 April 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0104444

Abstract

We have observed phase singularities due to vortex excitation in Bose-Einstein condensates. Vortices were created by moving a laser beam through a condensate. They were observed as dislocations in the interference fringes formed by the stirred condensate and a second unperturbed condensate. The velocity dependence for vortex excitation and the time scale for re-establishing a uniform phase across the condensate were determined.

Keywords

EINSTEIN CONDENSATES
PHASE SINGULARITIES
OBSERVED PHASE
BOSE EINSTEIN
SINGULARITIES
DISLOCATIONS
VORTEX PHASE

All Related Versions

Version 1, 2001-04-24, ArXiv
Published version: Physical Review Letters, 87 (8), 080402.

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